48 lines
1.3 KiB
JavaScript
48 lines
1.3 KiB
JavaScript
import * as esbuild from 'esbuild'
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import * as XLSX from 'xlsx';
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import * as fs from 'fs';
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XLSX.set_fs(fs);
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/* plugin */
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let sheetjsPlugin = {
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name: 'sheetjs',
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setup(build) {
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/* match NUMBERS, XLSX, XLS, and XLSB files */
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const EXTS = /.(numbers|xlsx|xls|xlsb)$/;
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/* this method will be called once for each referenced file */
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build.onLoad({ filter: EXTS }, (args) => {
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/* parse file from filesystem */
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const wb = XLSX.readFile(args.path);
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/* get first worksheet */
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const ws = wb.Sheets[wb.SheetNames[0]];
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/* workaround for JSON limitation */
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Date.prototype.toJSON2 = Date.prototype.toJSON;
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Date.prototype.toJSON = function() { return {d:this.toISOString()}; };
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/* generate row objects */
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const data = XLSX.utils.sheet_to_json(ws);
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/* generate final module code */
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const res = JSON.stringify(data);
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Date.prototype.toJSON = Date.prototype.toJSON2;
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const contents = `const data = ${res};
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data.forEach(row => {
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Object.keys(row).forEach(k => {
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if(row[k]?.d) row[k] = new Date(row[k].d);
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})
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});
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export default data;`
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return { contents, loader: 'js' };
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});
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},
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};
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await esbuild.build({
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entryPoints: ['app.js'],
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bundle: true,
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outfile: 'out.js',
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plugins: [sheetjsPlugin],
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});
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